Home / 38,282.76-57,440.58-13,309.20

Finding the Fourth Proportional to 38,282.76, 57,440.58 and 13,309.20

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Solution

The fourth proportional to 38,282.76, 57,440.58 and 13,309.20 is: 19,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,282.76 : 57,440.58 = 13,309.20 : x
  2. Step 2: Convert to fraction form
    38,282.76/57,440.58 = 13,309.20/x
  3. Step 3: Cross multiply
    38,282.76x = 57,440.58 × 13,309.20
  4. Step 4: Simplify right side
    38,282.76x = 764,488,167.34
  5. Step 5: Solve for x
    x = 764,488,167.34/38,282.76
  6. Step 6: Final answer
    x = 19,969.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.